music theory
This is a good site for music theory information – particularly if for learning, you’d rather read than watch videos. They have practice exercises that you can complete online, or you can print the worksheets out.
Main content page:
https://musictheory.pugetsound.edu/mt21c/MusicTheory.html
Below video is the first in a Music Theory series done by Seth Monahan. The complete list of these videos are linked here:
https://www.youtube.com/playlist?list=PLtVmMer7Hz1H4JXHA6NGsawkkkTpnJKyI
